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Finding the Fourth Proportional to 285,297.84, 427,951.62 and 107,888.40

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Solution

The fourth proportional to 285,297.84, 427,951.62 and 107,888.40 is: 161,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,297.84 : 427,951.62 = 107,888.40 : x
  2. Step 2: Convert to fraction form
    285,297.84/427,951.62 = 107,888.40/x
  3. Step 3: Cross multiply
    285,297.84x = 427,951.62 × 107,888.40
  4. Step 4: Simplify right side
    285,297.84x = 46,171,015,559.21
  5. Step 5: Solve for x
    x = 46,171,015,559.21/285,297.84
  6. Step 6: Final answer
    x = 161,834.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.